I used Draw.io to create flowcharts and mind maps for a class last semester ... while the hierarchical nature of the tasks helps you see what order you need to handle the tasks.

A mind map helps you generate ideas based on their association to other concepts. You start by writing your central idea in the center of the page, then drawing branches for other ideas.

ConceptDraw Mindmap is a business mind-mapping product that looks just like a part of Microsoft Office. Turning your ideas into a mind map can help make better sense of them, show how they relate ...